Python’s list data type is incredibly versatile and can be used to store practically any kind of information you want. But that also means it can be overwhelming, with so many methods available to you! If you just want to know which are the best list methods to use, you’re in luck. Here are five of the most useful list methods when working withpython list methods append sort remove reverse.
Create a List
If you’re new to Python or programming in general, it can be hard to understand what list methods do. They essentially allow you to interact with your lists without having to know how Python stores them internally. If you’re new to Python, working with these methods can be a huge time-saver as they allow you to work with your data without needing all of its details. You may also find the opposite of append python. There are also python append and delete that you might want to use on your list.
Add items to the end
Python’s append method lets you add a new item to an existing list in place. This is useful when you don’t know beforehand how many items a list will hold or if you simply want to keep adding information as it becomes available. It’s the opposite of Python’s append method: delete instead of add. You use Python’s delete method to remove one or more items from the end of a list instead of appending them.
Sort the items in your list
Say you want to make sure that your to-do list is in alphabetical order. To make sure it’s sorted properly, check out Python’s sort method. The basic syntax of sorts is sort(list_name), where list_name is what you want to be sorted. If you have a list called myListOfNumbers that looks like [0, 1, 2, 3], then a sort will look like myListOfNumbers.sort, and the new list will now look like: . The opposite of append is deleted. Python has a remove function that can delete an item from the list.
Remove specific elements from your list
There are various reasons why you might want to remove elements from a list. The most common reason is if you want to delete an element that’s not in its correct position. For example, suppose you have a list of numbers: [1, 3, 4] . To remove 1 from your list so that it becomes [3, 4] , use del like so: del list . Remember that Python starts counting at zero.
Reverse the order of the items in your list
For example, if we have [1,2] we want to return [2,1], which is the opposite of append. In Python’s advanced list manipulation documentation, there’s a method called reversed that will do exactly what you need. It takes an iterable as input (list) and returns the items in reverse order. The easiest way to get started with it is by assigning your list directly to it:
Now that you know about each of these Python list methods, you will be able to create Python lists with ease. For example, if you want to remove the second element from a Python list called my_list, use the following code: my_list.pop(1). If you want to reverse the order of a Python list using sort(), then just enter: sorted(my_list). The opposite of append in Python is deleting (), so to delete an element from a Python list with pop() use: my_list.pop(0)